Behavior of concrete columns reinforced with longitudinal fiber reinforced plastic bars - CICE 2012

Proceedings of CICE 2012 6th International Conference on FRP Composites in Civil Engineering - Rome, Italy, 13-15 June 2012

Using FRP material due to their excellent features like high strength to weight ratio, resistance to corrosion, convenience of transportation and installation, is developing rapidly. Using FRP bar instead of steel rebar significantly prevent corrosion in concrete members specifically for seashore concrete structures.
In this research, in order to investigate the benefits of replacing steel rebar with FRP bars in concrete columns, some column specimens were modeled in finite element computer program and the effects of parameters like FRP bar ratio and compressive strength of concrete on the flexural capacity and ductility of column were discussed. The investigations on the concrete columns strengthened with CFRP bar and steel rebar, indicates that the FRP bar ratio is significantly less than the steel rebar ratio to achieve the acceptable strength.

Keywords: Compressive strength of concrete, concrete column, flexibility, flexural capacity, FRP bar ratio.

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